--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.hotspot/src/com/oracle/max/graal/hotspot/nodes/TailcallNode.java	Tue Jan 24 19:17:28 2012 +0100
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.max.graal.hotspot.nodes;
+
+import java.lang.reflect.*;
+import java.util.*;
+
+import com.oracle.max.cri.ci.*;
+import com.oracle.max.cri.ri.*;
+import com.oracle.max.graal.compiler.gen.*;
+import com.oracle.max.graal.hotspot.*;
+import com.oracle.max.graal.hotspot.target.amd64.*;
+import com.oracle.max.graal.nodes.*;
+import com.oracle.max.graal.nodes.spi.*;
+import com.oracle.max.graal.nodes.type.*;
+
+/**
+ * Performs a tail call to the specified target compiled method, with the parameter taken from the supplied FrameState.
+ */
+public class TailcallNode extends FixedWithNextNode implements LIRLowerable {
+
+    @Input private final FrameState frameState;
+    @Input private final ValueNode target;
+
+    /**
+     * Creates a TailcallNode.
+     * @param target points to the start of an nmethod
+     * @param frameState the parameters will be taken from this FrameState
+     */
+    public TailcallNode(ValueNode target, FrameState frameState) {
+        super(StampFactory.illegal());
+        this.target = target;
+        this.frameState = frameState;
+    }
+
+    @Override
+    public void generate(LIRGeneratorTool generator) {
+        LIRGenerator gen = (LIRGenerator) generator;
+        HotSpotVMConfig config = CompilerImpl.getInstance().getConfig();
+        RiResolvedMethod method = frameState.method();
+        boolean isStatic = Modifier.isStatic(method.accessFlags());
+
+        CiKind[] signature = CiUtil.signatureToKinds(method.signature(), isStatic ? null : method.holder().kind(true));
+        CiCallingConvention cc = gen.frameMap().registerConfig.getCallingConvention(CiCallingConvention.Type.JavaCall, signature, gen.target(), false);
+        gen.frameMap().callsMethod(cc, CiCallingConvention.Type.JavaCall);
+        List<ValueNode> parameters = new ArrayList<>();
+        for (int i = 0; i < cc.locations.length; i++) {
+            parameters.add(frameState.localAt(i));
+        }
+        List<CiValue> argList = gen.visitInvokeArguments(cc, parameters, null);
+
+        CiValue entry = gen.emitLoad(new CiAddress(CiKind.Long, gen.operand(target), config.nmethodEntryOffset), false);
+
+        gen.append(AMD64TailcallOpcode.TAILCALL.create(argList, entry, cc.locations));
+    }
+}